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Prairie Bomb Clone

Method: All Grain
Style: Russian Imperial Stout
Boil Time: 60 min
Batch Size: 5 gallons (fermentor volume)
Pre Boil Size: 7.06 gallons
Pre Boil Gravity: 1.058 (recipe based estimate)
Efficiency: 72% (brew house)
Source: 5 Beanies
Calories: 427 calories (Per 12oz)
Carbs: 43.4 g (Per 12oz)

Created: Monday May 28th 2018

Original Gravity:

1.127

Final Gravity:

1.032

ABV (standard):

12.6%

IBU (tinseth):

99.1

SRM (morey):

50.0

Mash pH

5.4

Cost $

n/a

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Fermentation History

Target 65°F
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Attenuation: {{ stats.attenuation | number:2 }}%

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Carbs: {{ stats.carbs | number:1 }} g / 12oz

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Device Filter
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Fermentables

Amount	Fermentable	PPG	°L	Bill %
15.40 lb	American - Pale 2-Row15.4 lb Pale 2-Row	37	1.8	67.8%
1.14 lb	American - Chocolate1.14 lb Chocolate - (late boil kettle addition)	29	350	5%
1.14 lb	American - Roasted Barley1.14 lb Roasted Barley - (late boil kettle addition)	33	300	5%
10.91 oz	German - CaraMunich III10.91 oz CaraMunich III - (late boil kettle addition)	34	57	3%
10.91 oz	United Kingdom - Pale Chocolate10.91 oz Pale Chocolate - (late boil kettle addition)	33	207	3%
10.91 oz	Belgian - Special B10.91 oz Special B - (late boil kettle addition)	34	115	3%
3 lb	Dry Malt Extract - Light3 lb Dry Malt Extract - Light - (late boil kettle addition)	42	4	13.2%
22.73 lbs / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
2 oz	Horizon2 oz Horizon Hops	Pellet	12.5	Boil	60 min	88.34	40%
1.50 oz	East Kent Goldings1.5 oz East Kent Goldings Hops	Pellet	5	Boil	10 min	9.61	30%
1.50 oz	East Kent Goldings1.5 oz East Kent Goldings Hops	Pellet	5	Boil	1 min	1.14	30%
5 oz / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
2 oz	Horizon (Pellet)	88.34	40%
3 oz	East Kent Goldings (Pellet)	10.75	60%
5 oz / $ 0.00

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
5.25 gal	Infusion	--	155 °F	60 min
2.5 gal	Sparge	--	170 °F	10 min
Starting Mash Thickness: 1.4 qt/lb

Other Ingredients

Amount	Name	Type	Use
5.45 oz	Cacao Nibs	Other	Secondary
8 oz	Espresso Beans	Other	Secondary
3 each	Vanilla Beans	Flavor	Secondary
2 each	Ancho Chili peppers chopped	Spice	Secondary

Yeast

White Labs - California Ale Yeast WLP001

Amount:	1 Each	Cost:
Attenuation (avg):	76.5%	Flocculation:	Medium
Optimum Temp:	68 - 73 °F	Starter:	Yes
Fermentation Temp:	65 °F	Pitch Rate:	1.0 (M cells / ml / ° P) 559 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Target Water Profile

Gordon Strong

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
60	0	0	100	0	0
Mash Chemistry and Brewing Water Calculator

Notes

Changed 20 lbs pale 2-row to 15.4 lbs and 3 lbs Light DME

Steeped specialty grains

1.8L Starter (344B cells) + 2 SF-05 Dry Packs = 564B Cells

Prairie Artisan Bomb actual gravity is 1.030

Last Updated and Sharing

7,480

Views

Brews

Public: Yup, Shared
Last Updated: 2018-11-24 19:21 UTC

Recipe costs can be adjusted by changing the batch size. They won't be saved but will give you an idea of costs if your final yield was different.

Cost for

Gallons

Cost by

Final Yield

	Cost $	Cost %
Fermentables	$
Steeping Grains (Extract Only)	$
Hops	$
Yeast	$
Other	$
Cost Per Barrel	$ 0.00
Cost Per Pint	$ 0.00
Total Cost	$ 0.00

Other Brewers Who Brewed This Recipe:

NicB

DonHomer

Discussion about this recipe:

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hrigsby • 12/04/2018 at 08:54pm
Do you think this version is closer to Prairie Bomb than the version that was discussed on HBT in 2014? They're obviously very similar but I see higher IBU, lower OG, and the addition of DME instead of all 2 Row here. Also, are all of your ingredients labeled "late additions" just added while the wort gets from mash temp to boiling? Or are you holding a steeping temp for a set amount of time? Thanks!

plano_harry • 12/28/2018 at 01:00am

plano_harry • 12/28/2018 at 01:46am
hrigsby: This recipe was developed from the discussion in HBT you mentioned "Beanie Bomb". I just scaled it down to 5 gallons. I used the same hops but BF is showing 99 IBUs, not the 60 shown in HBT. I have read that frequently in high gravity beers it is hard to hit the OG numbers. I just bottled this evening and it is good at 10.63% ABV. It is fairly dry. My OG was lower but the final was also. After it ages a bit, I will do a taste test with the real deal to see how I did.
As for the grains, I can't get 20 lbs of 2-Row into my Mash & Boil all-in-one, I substituted the DME for some of the 2-Row and I put all the grains that did not require mashing into the sparge water to steep. (I did not want the specialty grains exposed to water over 170 as I ramped up to boil). I could have added them on top of the mash grains when I did the sparge, but thought the longer steep time might be better. I think I steeped them 30 minutes at 165.

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Prairie Bomb Clone

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